To me (and probably to the Rams) he adds an extra layer to the offense, and one that needs playmakers. He's also the most productive returner we've had in a long LONG time. If he can flip a game or two during the season (and has), then that's worth some money. I tend not to get too caught up in the cap or its implications, because I don't wanna be a fan/CPA. And I'm sure they've accounted for the guys they have to sign down the road after developing his contract. I mean, Bradford's contract was an abomination, and they were still able to sign their own guys and bring in costly free agents
Looking at him as strictly a receiver, I don't value him at 30M guaranteed.
Looking at him as a multifaceted game-changing
threat, I'd spend their money to keep him.
Plus, he looks much cooler than Johnny Foozball when doing the 'money' sign.